package com.baymax.study.security.infrastructure.security.exception;

import com.alibaba.fastjson.JSON;
import com.baymax.study.atomic.tools.ResultMsg;
import com.baymax.study.security.infrastructure.utils.WebUtils;
import org.springframework.http.HttpStatus;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 授权过程中出现的异常会被封装成AccessDeniedException然后调用AccessDeniedHandler对象的方法去进行异常处理
 */
@Component
public class AccessDeniedHandlerImpl implements AccessDeniedHandler {
    @Override
    public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException accessDeniedException) throws IOException, ServletException {
        ResultMsg result = ResultMsg.buildFailed(String.valueOf(HttpStatus.FORBIDDEN.value()), "权限不足");
        String json = JSON.toJSONString(result);
        WebUtils.renderString(response, json);
    }
}

